code: def tearDownModule():
      if prev_xla_flags is None:
          del os.environ["XLA_FLAGS"]
      else:
          os.environ["XLA_FLAGS"] = prev_xla_flags
      xla_bridge.get_backend.cache_clear()
  
imports: import os
  import jax
  import jax.numpy
  import numpy
  from absl.testing import absltest
  from jax._src import xla_bridge
  from jax._src import test_util
  from jax.sharding import NamedSharding, PartitionSpec
  from jax.experimental.shard_alike import shard_alike
  from jax.experimental.shard_map import shard_map
  from jax._src.lib import xla_extension_version
  from jax import config
label_desc: Use image node_id 2 for calling a global function with example usage: tearDownModule() without return types